| Value | Meaning |
|---|---|
| fine_add_to_file | |
| fine | |
| reject | reject the connection, return an error |
| defer | do not accept it, but we can't answer right now so this causes a CURLE_DEFER error but otherwise the connection will be left intact etc |
| last | not for use, only a marker for last-in-list |
this is the set of return values expected from the curl_sshkeycallback callback